CN113086963B - Monodisperse hollow-structure carbon mesoporous microsphere material and induced assembly preparation method using organic-inorganic hybrid salt as template - Google Patents
Monodisperse hollow-structure carbon mesoporous microsphere material and induced assembly preparation method using organic-inorganic hybrid salt as template Download PDFInfo
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Abstract
The invention relates to a monodisperse hollow structure carbon microsphere material and an induced assembly preparation method by taking organic-inorganic hybrid salt as a template, wherein the material is in the shape of a hollow microsphere, the diameter size of the microsphere is 300-2000nm, the hollow size is 100-800nm, the outer shell has a mesoporous structure, the thickness of the shell is 100-600nm, the mesoporous size is 1-10nm, and the specific surface area of the microsphere is 200-1000m 2 Per g, pore volume of 0.1-0.65cm 3 (ii) in terms of/g. During preparation, organic-inorganic hybrid salt is used as a template agent for self-assembly and subsequent polymerization growth, a high-molecular polymerization monomer and a polymerization catalyst thereof are dropwise added into a simple mixed solvent of alcohol and water, the salt template agent is removed in the subsequent sol-gel assembly growth process and the alcohol and water cleaning process, and the carbon microsphere material is obtained through calcination treatment in a protective atmosphere.
Description
Technical Field
The invention belongs to the technical field of material preparation, and particularly relates to a monodisperse hollow-structure carbon mesoporous microsphere material and an induced assembly preparation method thereof by taking organic-inorganic hybrid salt as a template.
Background
Due to the special physical and chemical properties and the available internal cavity and external mesoporous structure characteristics of the hollow-structure nano mesoporous material, the hollow-structure nano mesoporous material has wide application and research prospects in various fields, including the fields of electronic industry, environmental protection, cosmetic industry, medical science and the like, but in the application process, the structural characteristics of the hollow-structure material play a very critical role in performance, such as the monodispersity, size, surface state, conductivity and the like of material particles, which puts higher requirements on the structural design and preparation control of the hollow-structure material, the preparation and application of the size-adjustable monodisperse hollow-structure material are also paid more and more attention by researchers, particularly the carbon-based hollow mesoporous nano material becomes a research focus of various material application fields mainly because of the excellent photoelectric properties of the carbon material. The currently developed preparation methods of the hollow-structure carbon microsphere material mainly comprise a template method and a microemulsion method, but the preparation processes are difficult to prepare the monodisperse hollow carbon mesoporous microsphere material with the accurately adjustable size within the range of 300-2000nm, strong acid or strong base (hydrofluoric acid and sodium hydroxide) with strong corrosivity is often used for removing a template agent in the preparation processes, so that more safety or environmental problems are caused, and the prepared hollow carbon microsphere material has a smaller specific surface area, so that the preparation of the hollow carbon mesoporous microsphere with the controllable diameter in a large range and the monodisperse hollow carbon mesoporous microsphere still has great technical challenges. Therefore, the simple preparation method of the mesoporous carbon microsphere with the adjustable monodisperse hollow structure in a large diameter range has very important significance.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a monodisperse hollow carbon mesoporous microsphere material which is easy to operate, cheap and easily available in raw materials, good in repeatability and capable of being industrially prepared and a method for preparing the same by taking organic-inorganic hybrid salt as a template for induced assembly.
In order to achieve the purpose, the invention adopts the technical scheme that:
a monodisperse hollow carbon microsphere material with a mesoporous structure is provided, the carbon microsphere material is a hollow microsphere, and a microsphere shell layer has a mesoporous structure; the diameter size of the microsphere is adjustable from 300 nm to 2000nm, the adjustable range of the hollow size is 100nm to 800nm, the adjustable range of the shell layer thickness is 100nm to 600nm, the mesoporous size is 1 nm to 10nm, the specific surface area of the microsphere is 200m < 2 >/g to 1000m < 2 >/g, and the pore volume is 0.1 cm < 3 >/g to 0.65cm < 3 >.
A preparation method of a monodisperse hollow-structure carbon mesoporous microsphere material comprises the following steps:
organic-inorganic hybrid salt is used as a self-assembly template agent, and is added with a high-molecular polymerization monomer and a polymerization catalyst thereof in a mixed solvent of alcohol and water, so that sol-gel self-assembly in a system is induced and controlled under the action of the polymerization catalyst, and a monodisperse hollow-structure high-molecular polymerization microsphere material is formed after cleaning; and further calcining the formed monodisperse hollow-structure high-molecular polymer microsphere material to obtain the monodisperse hollow mesoporous-structure carbon microsphere material.
Further, the following steps are carried out:
(1) Dissolving water as organic-inorganic hybrid salt in good solvent water, adding a catalyst after dissolving, and stirring to form a uniformly dispersed clear saline solution; dropwise adding the clarified mixed aqueous solution into organic alcohol under stirring to enable anions and cations of organic-inorganic hybrid salt to be aggregated and assembled to form a colloid assembly white turbid colloidal solution with the size in a nanometer range, then adding a high-molecular polymerization monomer into the colloidal solution, then adding an acid or alkali catalyst for promoting the polymerization and crosslinking growth of the monomer on the surface of salt colloid particles to realize a sol-gel growth process, and then standing and aging for 6-24 hours; obtaining a white polymer gel mixed solution; wherein, the molar ratio of the organic alcohol, water, organic-inorganic hybrid salt and the high molecular polymerization monomer used in the reaction system is 100-5000:1-50:0.05-1:1; the volume ratio of the catalyst to the high-molecular polymerization monomer is 1-5;
(2) And centrifuging the obtained white polymer gel mixed solution, respectively and repeatedly washing the precipitate with water and organic alcohol to dissolve and remove the organic-inorganic hybrid salt template agent, and then drying to obtain the monodisperse hollow-structure polymer polymeric microsphere material.
(3) Calcining the obtained monodisperse hollow polymer polymeric microsphere material in a tubular furnace under a protective atmosphere to obtain the carbon microsphere material with an adjustable size in the range of 300-2000nm and a monodisperse mesoporous structure.
The organic-inorganic hybrid salt in the step (1) is a salt which is highly soluble in water and is insoluble in organic alcohol and contains organic acid anions and alkali metal cations; the organic alcohol solvent is low-carbon organic alcohol containing short alkyl chains; the catalytic reaction temperature range of the step (1) is 0-40 ℃, and the reaction time is 6-24h.
The organic-inorganic hybrid salt is one or any combination of several of ionic sodium citrate, potassium citrate, sodium malate, sodium ethylene diamine tetracetate, sodium tartrate, potassium oxalate, sodium quininate, potassium quininate, sodium ascorbate and sodium phytate;
the organic alcohol solvent is one or a combination of methanol, ethanol, n-propanol, isopropanol and n-butanol;
the catalyst is an acidic catalyst or a basic catalyst.
The acid catalyst is one or any combination of hydrochloric acid, sulfuric acid, phosphoric acid, nitric acid, oxalic acid, acetic acid and hydrogen bromide, and the alkali catalyst is one or any combination of ammonia water, sodium hydroxide, potassium hydroxide, urea, hexamethylenetetramine, ethanolamine and the like.
The organic polymeric monomer is one or any combination of phenol-formaldehyde, resorcinol-formaldehyde, 3-aminophenol-formaldehyde, hexamethylenetetramine-formaldehyde, melamine-formaldehyde, urea-formaldehyde, dopamine, aniline, pyrrole, and the like.
The stirring in the step (1) adopts mechanical stirring, the stirring power range is 50-500W, and the stirring speed is 0-200rpm.
The temperature of the reaction is 0-40 ℃.
The centrifugal rotating speed of the centrifugal separation in the step (2) is 8000-15000rpm, and the centrifugal time is 5-100 minutes; the solvent selected for washing is one or any combination of water and ethanol.
Calcining for 3-6 hours in a tubular furnace at 400-1100 ℃ under the protective atmosphere; the calcining protective atmosphere is one of nitrogen, high-purity nitrogen and argon.
In the invention, organic-inorganic hybrid salt consisting of organic acid anions and alkali metals is assembled in poor solvent organic alcohol to form spherical colloid, thus forming colloid solution of uniformly dispersed salt, then the interaction between the surface of salt colloid particles and organic polymeric monomers can induce the organic polymeric monomers to assemble and crosslink on the surface of the colloid particles, and acid or alkali catalyst which can effectively adjust the polymerization and crosslinking speed of the organic polymeric monomers is added in the process, so that the hydrolysis and crosslinking speed of organic polymeric monomer precursors in mixed solvent can be effectively adjusted, the organic polymeric monomer precursors can be used as structure-directing agent to effectively induce the generation of colloid high molecular polymer microspheres, the organic-inorganic hybrid salt template agent can be dissolved and removed by respectively repeatedly cleaning with water and organic alcohol, and the organic high molecular polymer or carbon microsphere material with adjustable monodisperse mesoporous structure in a large size range can be obtained after proper drying and calcining treatment.
The invention has the advantages that:
compared with the prior art, the invention can self-assemble and aggregate two ions in organic-inorganic hybrid salt which can be dissolved in good solvent water into uniformly dispersed colloidal particles in poor solvent organic alcohol, and simultaneously introduce an acid or alkali catalyst which can effectively adjust organic polymer monomers, after the organic polymer monomer precursor is added into a system, the hydrolytic crosslinking speed of the organic polymer monomer precursor in a mixed solvent of water and organic alcohol and the polymerization degree of the particles can be effectively adjusted through the interaction between the salt colloidal particles and the organic polymer monomer precursor, and the organic polymer monomer precursor can be used as a structure guiding agent to effectively induce the generation of organic polymer microsphere colloid, and can effectively prevent the agglomeration and growth of the organic polymer microsphere, and the organic-inorganic hybrid salt template agent can be dissolved and removed through the subsequent cleaning process of water and organic alcohol, so that the material has an obvious hollow mesoporous structure, and the mesoporous organic polymer or carbon microsphere material with the monodisperse hollow structure is obtained after drying and calcining treatment.
Compared with the traditional synthetic method, the method has the advantages of strong controllability, simple process, good repeatability, convenient operation and low cost, and does not need corrosive substances to remove the template agent. The obtained hollow carbon mesoporous microsphere has the advantages of wide and adjustable diameter size (300-2000 nm), spherical shape, good monodispersity, uniform granularity, higher specific surface area and porosity, and can be used as an oxygen reduction electrocatalytic carrier material with excellent performance.
Drawings
FIG. 1 is a Scanning Electron Microscope (SEM) image of a characteristic of a monodisperse hollow carbon mesoporous microsphere material, which is prepared by the method in example 1;
FIG. 2 is a Transmission Electron Microscope (TEM) image of a monodisperse hollow carbon mesoporous microsphere material prepared in example 1;
FIG. 3 is an electrochemical performance curve of a monodisperse hollow carbon mesoporous microsphere material used as an ORR electrocatalytic carrier loaded with 10wt% platinum catalyst, which is prepared in example 1.
Detailed Description
The following embodiments of the present invention are provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It is to be understood that the processing equipment or apparatus not specifically identified in the following examples is conventional in the art.
Furthermore, it is to be understood that one or more method steps mentioned in the present invention does not exclude that other method steps may also be present before or after the combined steps or that other method steps may also be inserted between these explicitly mentioned steps, unless otherwise indicated; it is also to be understood that a combined connection between one or more devices/apparatus as referred to in the present application does not exclude that further devices/apparatus may be present before or after the combined device/apparatus or that further devices/apparatus may be interposed between two devices/apparatus explicitly referred to, unless otherwise indicated. Moreover, unless otherwise indicated, the numbering of the various method steps is merely a convenient tool for identifying the various method steps, and is not intended to limit the order in which the method steps are arranged or the scope of the invention in which the invention may be practiced, and changes or modifications in the relative relationship may be made without substantially changing the technical content.
Example 1
(1) Dissolving 0.2g sodium citrate with 10ml water under stirring, adding 5ml ammonia water
Continuously mechanically stirring the solution serving as a polymerization catalyst for 5 minutes, quickly introducing 200ml of ethanol into the mixed solution, continuously stirring the solution for 5 minutes, adding 2g of resorcinol into the mixed solution and stirring the solution to dissolve the resorcinol, dropwise adding 2ml of another polymerization monomer formaldehyde solution into the solution after 1 minute, continuously stirring the solution for 1 minute, standing and ageing the solution for 12 hours to obtain a white gel mixed solution, wherein the whole polymerization reaction process is controlled at the room temperature of 25 ℃.
(2) And centrifuging the obtained white gel mixed solution at 10000rpm for 10 minutes to separate a white gel precipitate product, then washing the white gel precipitate product with ethanol for three times, then washing the white gel precipitate product with water for three times, and drying the obtained white precipitate in air at 60 ℃ for 12 hours to obtain the monodisperse hollow-structure mesoporous high molecular polymer microspheres with the diameter size of 850 nm.
(3) Then calcining for 4 hours at 600 ℃ under the nitrogen protection atmosphere to obtain the monodisperse hollow-structure mesoporous carbon microsphere with the diameter size of 800 nm. The morphology and characteristics are shown in fig. 1-3. The prepared carbon microsphere material has a spherical hollow structure, and the diameter of the microsphere is about 800nm; the spherical material has obvious cavity structure composition, the outer shell layer has regular mesoporous structure with mesoporous size of 1-5nm, the monodispersion coefficient can reach 0.15 determined by dynamic light scattering, and the spherical material has a content as high as 780g/m measured by nitrogen adsorption and desorption 2 When used as an ORR electrocatalytic support material supporting 10wt% pt, its half-wave potential may be close to 0.79.
Example 2
(1) Dissolving 0.2g of sodium malate in 10ml of water under stirring, adding 5ml of ammonia water after dissolution, and continuously mechanically stirring for dissolution. After stirring for 5 minutes, quickly introducing 200ml of ethanol mixed solution into the mixed solution, after continuously stirring for 5 minutes, adding 2g of resorcinol into the mixed solution and stirring to dissolve the resorcinol, dropwise adding 2ml of formaldehyde solution into the solution, continuously stirring for 1 minute, standing and ageing for 12 hours, and controlling the temperature of the whole reaction process to be 0 ℃.
(2) And centrifuging the obtained white gel mixed solution at 10000rpm for 10 minutes to separate a white gel precipitate product, then washing the white gel precipitate product with ethanol for three times, then washing the white gel precipitate product with water for three times, and drying the obtained white precipitate in air at 60 ℃ for 12 hours to obtain the monodisperse hollow-structure mesoporous high molecular polymer microspheres with the diameter size of 900 nm.
(3) Then calcining for 4 hours at 600 ℃ under the nitrogen protection atmosphere to obtain the monodisperse hollow-structure mesoporous carbon microsphere with the diameter of 850 nm.
Example 3
0.3g of sodium quininate is dissolved with 10ml of water under stirring, 5ml of ammonia water is added after dissolution, and the solution is dissolved by continuous mechanical stirring. After stirring for 5 minutes, quickly introducing the mixed solution into 200ml of ethanol mixed solution, after continuously stirring for 5 minutes, adding 2g of resorcinol into the mixed solution and stirring to dissolve the resorcinol, dropwise adding 2ml of formaldehyde solution into the solution, continuously stirring for 1 minute, standing and ageing for 12 hours, and controlling the whole reaction process at the temperature of 30 ℃. And centrifuging the obtained white gel mixed solution at 10000rpm for 10 minutes to separate a white gel precipitate product, then washing the white gel precipitate product with ethanol for three times, then washing the white gel precipitate product with water for three times, and drying the obtained white precipitate product in air at 60 ℃ for 12 hours to obtain the monodisperse hollow-structure mesoporous high polymer microsphere with the diameter size of 850 nm. Then calcining for 4 hours at 600 ℃ under the nitrogen protection atmosphere to obtain the monodisperse hollow-structure mesoporous carbon microsphere with the diameter size of 800 nm.
Example 4
Dissolving 0.5g of sodium malate in 10ml of water under stirring, adding 5ml of ammonia water after dissolution, and continuously mechanically stirring for dissolution. After stirring for 5 minutes, quickly introducing 200ml of ethanol mixed solution into the mixed solution, after continuously stirring for 5 minutes, adding 3g of resorcinol into the mixed solution and stirring to dissolve the resorcinol, then dropwise adding 3ml of formaldehyde solution into the solution, continuously stirring for 1 minute, standing and ageing for 12 hours, and controlling the temperature of the whole reaction process to be 40 ℃. And centrifuging the obtained white gel mixed solution at 10000rpm for 10 minutes to separate a white gel precipitate product, then washing the white gel precipitate product with ethanol for three times, then washing the white gel precipitate product with water for three times, and drying the obtained white precipitate in the air at 60 ℃ for 12 hours to obtain the monodisperse hollow-structure mesoporous high molecular polymer microspheres with the diameter size of 1100 nm. Then calcining for 4 hours at 600 ℃ under the nitrogen protection atmosphere to obtain the monodisperse hollow-structure mesoporous carbon microsphere with the diameter size of 1000 nm.
Example 5
0.2g of sodium citrate is dissolved with 10ml of water under stirring, and after dissolution, 5ml of ammonia water is added, and mechanical stirring is continued. After stirring for 5 minutes, quickly introducing 200ml of ethanol mixed solution into the mixed solution, after continuously stirring for 5 minutes, dropwise adding 2ml of dopamine solution into the solution, continuously stirring for 1 minute, standing and ageing for 12 hours, and controlling the whole reaction process at room temperature of 25 ℃. And centrifuging the obtained white gel mixed solution at 10000rpm for 10 minutes to separate a white gel precipitate product, then washing the white gel precipitate product with ethanol for three times, then washing the white gel precipitate product with water for three times, and drying the obtained white precipitate in air at 60 ℃ for 12 hours to obtain the monodisperse hollow-structure mesoporous high molecular polymer microspheres with the diameter size of 500 nm. Then calcining for 4 hours at 600 ℃ under the nitrogen protection atmosphere to obtain the monodisperse hollow-structure mesoporous carbon microsphere with the diameter size of 400 nm.
The morphology and characteristics of the monodisperse carbon mesoporous microspheres prepared in examples 2-5 are similar to those of example 1, and are not repeated.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. A monodisperse hollow carbon microsphere material with a mesoporous structure is characterized in that: the carbon microsphere material is a hollow microsphere, and a microsphere shell layer has a mesoporous structure; the diameter of the microsphere is 300-2000nm, the adjustable range of the hollow size is 100-800nm, the adjustable range of the shell thickness is 100-600nm, the mesoporous size is 1-10nm, and the specific surface area of the microsphere is 200-1000m 2 Per g, pore volume of 0.1-0.65cm 3 (ii)/g; adopting organic-inorganic hybrid salt as a self-assembly template agent, adding a high-molecular polymerization monomer and a polymerization catalyst thereof into a mixed solvent of alcohol and water, inducing and controllably carrying out sol-gel self-assembly in a system under the action of the polymerization catalyst, and directly removing the organic-inorganic hybrid salt template agent after cleaning to form a monodisperse hollow-structure high-molecular polymerization microsphere material; further calcining the formed monodisperse hollow-structure polymer microsphere material to obtain a monodisperse hollow mesoporous carbon microsphere material; the organic-inorganic hybrid salt is a salt which is highly soluble in water and hardly soluble in organic alcohol and contains organic acid anions and alkali metal cations;
the preparation method of the monodisperse hollow carbon mesoporous microsphere material comprises the following steps: (1) Dissolving water as organic-inorganic hybrid salt in good solvent water, adding acid or alkali catalyst after dissolving, and stirring to form a uniformly dispersed clear salt water solution; rapidly adding the clarified mixed aqueous solution into organic alcohol under stirring to enable anions and cations of organic-inorganic hybrid salt to be aggregated and assembled to form a colloidal assembly white turbid colloidal solution with the size in a nanometer range, then adding a high-molecular polymerization monomer into the colloidal solution, promoting the polymerization and crosslinking growth of the monomer on the surface of salt colloidal particles by utilizing an acid or alkali catalyst in the system to realize a sol-gel growth process, and then standing and aging for 6-24 hours to obtain a white high-molecular gel mixed solution; wherein, the molar ratio of the organic alcohol, water, organic-inorganic hybrid salt and the high molecular polymerization monomer used in the reaction system is 100-5000:1-50:0.05-1:1; the volume ratio of the catalyst to the high-molecular polymerization monomer is 1-5;
(2) Centrifuging the obtained white polymer gel mixed solution, repeatedly washing precipitates by water and organic alcohol respectively to remove a template agent, and then drying to obtain a monodisperse hollow polymer polymeric microsphere material;
(3) And calcining the obtained monodisperse hollow polymer polymeric microsphere material in a tubular furnace under a protective atmosphere to obtain the carbon microsphere material with an adjustable size in the range of 300-2000nm, a monodisperse and mesoporous structure.
2. A method for preparing a monodisperse hollow carbon mesoporous microsphere material according to claim 1, which is characterized in that:
adopting organic-inorganic hybrid salt as a self-assembly template agent, adding a high-molecular polymerization monomer and a polymerization catalyst thereof into a mixed solvent of alcohol and water, inducing and controllably carrying out sol-gel self-assembly in a system under the action of the polymerization catalyst, and directly removing the organic-inorganic hybrid salt template agent after cleaning to form a monodisperse hollow-structure high-molecular polymerization microsphere material; further calcining the formed monodisperse hollow-structure polymer microsphere material to obtain a monodisperse hollow mesoporous carbon microsphere material; the organic-inorganic hybrid salt is a salt which is highly soluble in water and hardly soluble in organic alcohol and contains organic acid anions and alkali metal cations;
the preparation method of the monodisperse hollow carbon mesoporous microsphere material comprises the following steps: (1) Dissolving water as organic-inorganic hybrid salt in good solvent water, adding acid or alkali catalyst after dissolving, and stirring to form a uniformly dispersed clear saline solution; rapidly adding the clarified mixed aqueous solution into organic alcohol under stirring to enable anions and cations of organic-inorganic hybrid salt to be aggregated and assembled to form a colloidal assembly white turbid colloidal solution with the size in a nanometer range, then adding a high-molecular polymerization monomer into the colloidal solution, promoting the polymerization and crosslinking growth of the monomer on the surface of salt colloidal particles by utilizing an acid or alkali catalyst in the system to realize a sol-gel growth process, and then standing and aging for 6-24 hours to obtain a white high-molecular gel mixed solution; wherein, the molar ratio of the organic alcohol, water, organic-inorganic hybrid salt and the high molecular polymerization monomer used in the reaction system is 100-5000:1-50:0.05-1:1; the volume ratio of the catalyst to the high-molecular polymerization monomer is 1-5;
(2) Centrifuging the obtained white polymer gel mixed solution, repeatedly washing precipitates by water and organic alcohol respectively to remove a template agent, and then drying to obtain a monodisperse hollow-structure polymer polymeric microsphere material;
(3) And calcining the obtained monodisperse hollow polymer polymeric microsphere material in a tubular furnace under a protective atmosphere to obtain the carbon microsphere material with an adjustable size in the range of 300-2000nm, a monodisperse and mesoporous structure.
3. The preparation method according to claim 2, wherein the organic alcohol solvent is one or more of methanol, ethanol, n-propanol, isopropanol and n-butanol; the catalytic reaction temperature range of the step (1) is 0-40 ℃, and the reaction time is 6-24h.
4. The preparation method of claim 3, wherein the organic-inorganic hybrid salt is one or more of ionic sodium citrate, potassium citrate, sodium malate, sodium ethylene diamine tetracetate, sodium tartrate, potassium oxalate, sodium oxalate and sodium ascorbate in any combination.
5. The production method according to claim 4,
the acid catalyst is one or any combination of hydrochloric acid, sulfuric acid, phosphoric acid, nitric acid, oxalic acid, acetic acid and hydrogen bromide, and the alkali catalyst is one or any combination of ammonia water, sodium hydroxide, potassium hydroxide, urea, hexamethylenetetramine and ethanolamine.
6. The method according to claim 2, wherein the polymeric monomer is one of phenol-formaldehyde, resorcinol-formaldehyde, 3-aminophenol-formaldehyde, hexamethylenetetramine-formaldehyde, melamine-formaldehyde, urea-formaldehyde, dopamine, aniline, pyrrole, or any combination thereof.
7. The preparation method of the monodisperse hollow carbon mesoporous microsphere material according to claim 2, wherein the stirring in the step (1) is mechanical stirring, the stirring power is 50-500W, and the stirring speed is 0-200rpm.
8. The method for preparing the monodisperse hollow carbon mesoporous microsphere material according to claim 2, wherein the temperature of the polymerization reaction is 0-40 ℃.
9. The method for preparing a monodisperse hollow carbon mesoporous microsphere material according to claim 2, wherein the centrifugation in step (2) is performed at 8000-15000rpm for 5-100 minutes.
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| CN109675506A (en) * | 2018-12-27 | 2019-04-26 | 上海元颉新材料科技有限公司 | The structure mesoporous silicon oxide microsphere material of monodisperse hollow and its Dual Surfactants induce process for assembly preparing |
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